1/2*d=7

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Solution for 1/2*d=7 equation: 


d in (-oo:+oo)

(1/2)*d = 7 // - 7

(1/2)*d-7 = 0

1/2*d-7 = 0 // + 7

1/2*d = 7 // : 1/2

d = 7/1/2

d = 14

d = 14

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